# GKCheckerboardNoiseSource A procedural noise generator whose output is an alternating square pattern. ``` class GKCheckerboardNoiseSource ``` ## Overview Checkerboard noise can be useful as an input to [`GKNoise`](/documentation/GameplayKit/GKNoise) methods that create noise by combining other noise objects through various operations.  Like all [`GKNoiseSource`](/documentation/GameplayKit/GKNoiseSource) subclasses, a checkerboard noise source represents a noise generation algorithm and its parameters. To make use of a noise source, first create [`GKNoise`](/documentation/GameplayKit/GKNoise) object from it (and optionally apply operations to that noise object or combine it with other noise objects). Then create a [`GKNoiseMap`](/documentation/GameplayKit/GKNoiseMap) object from your noise object, generating a concrete field of values that you can sample from directly or visualize using the or `SKTileMap` class. ## Topics ### Creating a Noise Source [`init(squareSize:)`](/documentation/GameplayKit/GKCheckerboardNoiseSource/init(squareSize:)) Initializes a checkerboard noise source with the specified square size. [`checkerboardNoise(withSquareSize:)`](/documentation/GameplayKit/GKCheckerboardNoiseSource/checkerboardNoise(withSquareSize:)) Creates a checkerboard noise source with the specified square size. ### Managing Noise Generation Parameters [`squareSize`](/documentation/GameplayKit/GKCheckerboardNoiseSource/squareSize) The size (both width and height) of squares in the generated checkerboard pattern. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)